Creating a delightful Chicken Salad is straightforward if you follow these simple steps:

1. Prepare the Chicken: If not already cooked, boil or roast your chicken until fully cooked. Let it cool before shredding or dicing.
2. Chop Vegetables: Dice the celery and halve the grapes. If using nuts, chop them into smaller pieces.
3. Combine Ingredients: In a large mixing bowl, combine the chicken, celery, grapes, and nuts (if using).
4. Make the Dressing: In a separate bowl, whisk together the mayonnaise (or yogurt), Dijon mustard, lemon juice, salt, and pepper.
5. Mix Together: Pour the dressing over the chicken mixture and toss until everything is well coated.
6. Chill: Cover the bowl and place it in the refrigerator for about 30 minutes to allow the flavors to meld.
7. Garnish: Before serving, sprinkle freshly chopped herbs on top for added flavor and color.

These steps will guide you to creating an incredible Chicken Salad that everyone will enjoy.